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AD1935 Datasheet(PDF) 16 Page - Analog Devices

Part # AD1935
Description  4 ADC/8 DAC with PLL, 192 kHz, 24 Bit CODEC
PDF  30 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD1935 Datasheet(HTML) 16 Page - Analog Devices

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AD1935/AD1936/AD1937/AD1938/AD1939
Preliminary Technical Data
Rev. Pr
I | Page 16 of 30
PIN FUNCTION DESCRIPTIONS
48-Lead LQFP Plastic Package – AD1936, AD1938
Pin No.
In/Out
Mnemonic
Description
1
I
AGND
Analog Ground.
2
I
MCLKI/XI
Master Clock Input/ Crystal Oscillator Input.
3
I
MCLK/XO
Master Clock Output/ Crystal Oscillator Output.
4
I
AGND
Analog Ground.
5
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
6
O
OL3
DAC 3 Left Output.
7
O
OR3
DAC 3 Right Output.
8
O
OL4
DAC 4 Left Output.
9
O
OR4
DAC 4 Right Output.
10
I
PD/RST
Power-Down Reset (Active Low).
11
I
DSDATA4
DAC Input 4 (Input to DAC 4 L and R).
12
I
DGND
Digital Ground.
13
I
DVDD
Digital Power Supply. Connect to digital 3.3 V supply.
14
I
DSDATA3
DAC Input 3 (Input to DAC 3 L and R).
15
I
DSDATA2
DAC Input 2 (Input to DAC 2 L and R).
16
I
DSDATA1
DAC Input 1 (Input to DAC 1 L and R).
17
I/O
DBCLK
Bit Clock for DACs.
18
I/O
DLRCLK
LR Clock for DACs.
19
O
ASDATA2
ADC Serial Data Output 2 (ADC 2 L and R).
20
O
ASDATA1
ADC Serial Data Output 1 (ADC 1 L and R).
21
I/O
ABCLK
Bit Clock for ADCs.
22
I/O
ALRCLK
LR Clock for ADCs.
23
O
CIN/ADR0
Control Data Input (SPI)/Address 0 (I2C).
24
I
COUT/SDA
Control Data Output (SPI)/Serial Data (I2C).
25
I
DGND
Digital Ground.
26
I
CCLK/SCL
Control Clock Input (SPI)/Serial Clock (I2C).
27
I
CLATCH/ADR1
Latch Input for Control Data (SPI)/Address 1 (I2C).
28
O
OL1
DAC 1 Left Output.
29
O
OR1
DAC 1 Right Output.
30
O
OL2
DAC 2 Left Output.
31
O
OR2
DAC 2 Right Output.
32
I
AGND
Analog Ground.
33
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
34
I
AGND
Analog Ground.
35
O
FILTR
Voltage Reference Filter Capacitor Connection. Bypass with 10 µF||100 nF to AGND.
36
I
AGND
Analog Ground.
37
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
38
O
CM
Common Mode Reference Filter Capacitor Connection. Bypass with 10 µF||100 nF to AGND.
39
I
ADC1LP
ADC1 Left Positive Input.
40
I
ADC1LN
ADC1 Left Negative Input.
41
I
ADC1RP
ADC1 Right Positive Input.
42
I
ADC1RN
ADC1 Right Negative Input.
43
I
ADC2LP
ADC2 Left Positive Input.
44
I
ADC2LN
ADC2 Left Negative Input.
45
I
ADC2RP
ADC2 Right Positive Input.
46
I
ADC2RN
ADC2 Right Negative Input.
47
O
LF
PLL Loop Filter, Return to AVDD.
48
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
Table 13. Pin Function Description—48-Lead LQFP( AD1936, AD1938)



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